Not really. Firstly Rashford isn't on par with Mbappe technically - his finishing in 1v1s is abysmal and his close control isn't at that level either. And most importantly - ball retention through correct decision making is something he has to work on and something he has improved a lot already but last season there were many times he'd get the ball and predictably just try to run past the opposition and end up giving the ball away or running into a dead end - knowing when to press that trigger and when to be patient and wait for the right moment is paramount and what all greats share in common. With Mbappe, some of the best players in the world who are playing alongside him can easily trust him with the ball knowing he won't turn it over unnecessarily and the attack won't go to waste. For us, currently that player would be Pogba, and knowing he isn't flawless either but he has that element of maturity to his game and usually makes the best decision for the team when he gets the ball, which could playing a delicious lob or just passing it sideways. So far given Rashford's age and talent there's no need to demand that maturity from him at the risk of him curbing his explosiveness but that is something that he will eventually have to ingrain into his game if he aims to be a leading star in the coming years.
Also managers not factoring the opposition as well as the level of competition is actually rubbish. No one would be creaming over Mbappe if he was just someone who cracked a few goals in Ligue 1. He carried that into CL and continued that level against an elevated level of opposition which shows bigger promise when it comes to playing for top clubs. And it's not rocket science why it shouldn't be a big factor anyway when assessing any player.
I'm trying to ignore the stupidity of this debate but there is so much wrong with this it has to be called up on.
a) Mbappe's decision making is about half as good as you are pretending it is. I've seen him have games where he has wasted good positions time and again, like any talented young player does. He is in good form but the inconsistency is there.
b) decision making isn't how you can tell that a young player is better than another young player. If it was Cristiano Ronaldo would have ended up playing for Scunthorpe. Yet, I'm going to hazard a fairly safe guess that neither Mbappe or Rashford are actually as good as Ronaldo.
c) You then go on to name Pogba as a player with good decision making which just confounds the lunacy of this whole point, as currently his decision making is absolutely atrocious for a fairly experienced player, and is THE thing that stops him from being anywhere near as good as he should be.
d) The last point makes no sense. If you're comparing two players, you cannot say "well player a did well against Bayern Munich which proves he's better than player b because player b hasn't played against them"...this would be like saying one car is faster than another based on it winning a race the other one wasn't in. Rashford has met and passed every test he's faced so far, playing for Manchester United, which is no easy feat. He's scored the winning goal away at the Etihad...he's put in MOTM and match winning performances against teams like Chelsea and Arsenal. He's been vital in his team winning major trophies. He's been MOTM in an FA Cup final before getting injured. He can't really have done much more than he has. Mbappe is in a similar scenario, so it is not an unfair comparison even if it is a completely pointless one.
The thing is, both will hit spells of poor form...the difference is, when Rashford does, although it wont stop people on here slagging him off, it will by en large be treated as it should be...inconsistency from a player still learning. When Mbappe hits a poor run of form, there'll be all these people claiming he's the greatest thing ever who will suddenly look very silly, and because of that he'll start getting ridiculous levels of criticism, due to expectations being placed on him that are frankly completely moronic. Similar to what Rooney has had to put up with most of his career and which you'd suspect has affected him at times.
There is also a tendancy on here as someone already pointed out, to just go bonkers over any talented player who doesn't play for United. Mata and Mhikitaryan were both the greatest things ever before we signed them. Now you have people who want to sign Mezut Ozil to play instead of one of them. When you're not watching every second of every performance from a player like you do with United players, you get a very different perspective of them, because it's the positive moments that stick out.
I haven't seen anyone say Rashford is the greatest thing ever...I actually find Martial the more exciting player at this moment, but this belittling of him and weird attempt to place Mbappe on some kind of unique pedestal is bizarre. You're talking about players who are 3-5 years away from being even near the finished article, and were the gap between how good or not so good that finished article could be is so massive that even fair comparisons at this point mean next to nothing.
People also keep saying about how "if Rashford was this" or "if Mbappe was that" but the reality is that most of the hype around Mbappe that I've seen, comes from people banging on about him on this bloody forum. If I didn't come on here he'd just be that kid who looked decent for Monaco last year. I wouldn't care less who he was supposedly better than or not better than. He isn't a benchmark for anyone. He's 18