This thread is VERY SAD... I don't even have words to explain what I feel when I see this. This is, anyway, a fair portrait of the state of the country itself... it is just pathetic. Franco died 50 years ago, we are close to a century from the Civil War...
Laporta should have never talked about the "regime" because it has nothing to do with Negreira, it is pathetic. It is just not relevant. The Real Madrid video is stupid and a shame. Real Madrid TV by the way has been nauseating for the last few months.
I think this debate is very unfair for Barcelona and Real Madrid and this doesn't help at all, anyone, for any reason. This just inflates even more the hate and light on the fanatics.
I will give you my vision (which, by the way, it is more or less the "consensus" among historians)...
In summary, neither Barca or Real were "the team of the regime", the regime used them, in different ways, with different objectives.
I will start with Real...
Madrid was a Republican city (and it fought like that), Santiago Bernabeu was not. Bernabeu fled Madrid, joined the Franco army, fought in Catalonia and got condecorated by the Franco army. He wasn't himself a "francoist", but he was a right wing man who chose his side in the war. He became president of Real as an "ok" from the club itself and the power (specially military). Bernabeu had a better relationship with the military than politicians (even if they were former military too). He was a strong man and he didn't like to be told, so he usually had his in and outs with authority power, but he still was a right wing conservative, so it wasn't a real issue for Franco. He could do what he pleased while he kept minimum respect. Real Madrid was destroyed after the war because Madrid itself was destroyed. That is the main reason Madrid didn't have a lot of success right after the war. You could see a lot of military in the stadium but not a lot of money at that point. He started to rebuild.
By 50s, Bernabeu was doing a good job and the regime started to see it like a good thing, a good propaganda machine. When Madrid started winning it was crystal clear. They were the perfect ambassassor of the regime. They were from Madrid (more on that later), they were 100% spanish, no doubt, the president, even if he wasn't super proFranco, shared the same ideology and they even wore pure white (not in terms of race, but more like christian priests). Meanwhile, Madrid never had an issue being used, as it was good for them too. One of the ways the government helped them, was using the diplomats to create reports of rival teams in Europe so Madrid knew better about their players, style of play, etc. Government main help was PR. Madrid became the most followed team of Spain by their own merits and the help of the government. Can you blame Bernabeu on that? I don't think so. Does it mean they were "the team of the regime"? I don't think so. Does it mean that they didn't profit from the propaganda the government created around them? I don't think so.
The Real Madrid video put a phrase from Bernabeu (when Franco was already dead), but Saporta (who gave name to the basketball stadium, very close friend to Bernabeu and who took the power for transition after his death told:
Real Madrid is and has been political. It has always been so powerful for being at the service of the backbone of the State. When it was founded in 1902 it respected Alfonso XIII, in 1931 the Republic, in 1939 the Generalissimo, and now it respects His Majesty Juan Carlos. Because it is a disciplined Club and it is loyal to the institution that leads the nation. institution that leads the nation.
To me, Real Madrid is not "the team of the regime" in the sense of the "favourite" (it was, for propaganda reasons), but Madrid has controlled for the most part of the history all the football bodies. From the referees themselves (80-90% of time until the 90s) and the football justice system (they had a majority of members until 2018 in the Competition Committee who decide sanctions and they are the only team with members in that deciding committee right now).
Barca...
The interest in Barca was totally different. Sunyol was killed by the Franco army while he was Barca president. He had announced he was going to leave because of political reasons, as he was joining ERC (Republican Leftist of Catalonia). He wasn't killed for being Barca president, he just happened to be.
From now on, Franco was very interested in having Barcelona under control, because Catalonia represented (obvious) different issues to the Regime and the team already was a very followed institution in Catalonia (not like Espanyol, for example). Franco tried to basically kidnap FC Barcelona for the most time of his rule. Many of the presidents weren't even members of Barcelona, they were men of the regime.
"Then... Barcelona was the team of the regime!"... well... no... the intention was not making Barca win, just deprive the catalanist views and show kind of "how spaniard Barca are, how unite we are with Franco". Barca had some success right after the war because they were already a good team and the war wasn't that devastating for them, in comparison. However, the team was worse and worse because the board was more or less intervined the whole time, and it wasn't easy to focus just in the sport. In the meantime, the presidents who were closer to the regime had more actions like the mentioned in the video or help in specific moments.
So... was Barca the team of the regime? no... it was just another victim that the regime wanted to use for its own benefit.
Barca and Real were both instruments of Franco for his benefit. Period.