What I agree upon: if he believes the message isn't working, we do live in a world of "free speech" here in the UK where we should voice our opinions. This doesn't mean he's racist, he is saying he doesn't feel the message is as effective anymore, and we can't change the spots of a leopard. There isn't actually anything wrong with that.
Racists in the UK and across the world will simply not change their views of people that are not the same as them. Taking the knee every time will simply infuriate them further and push them to more hateful acts than converting them. The ones that target black footballers really are a minority of purely hateful, racist people that won't change their opinion even if their partner was saved by a doctor of different colour, their car was repaired on the motorway after breaking down by a mechanic of a different colour, or they had a leak in the house that was quickly fixed by a plumber of different colour. They just will be stuck in their ways and unfortunately wont change their opinions on those who are different to them by colour, and only can be punished by exposing them for who they are. These people typically aren't just racist, but are also homophobic, xenophobic, many other phobics you can list will be their beliefs.
Whereas, I disagree on: his one-man stand on an approach that was agreed upon amongst 20 clubs. As much as it's free speech, the message is combined as a collective, and everyone is participating to voice their beliefs. He should be speaking to his teammates and say if they are happy for him not to kneel whilst they continue the message. If they agreed together not to do so, then Chelsea should announce as a club they decide the message isn't working.
There are a good amount of Chelsea players of colour, and some may agree with him, some not. The point remains that if they want to continue the message they are portraying then they should unify and keep it going. We all do things we dont want to on behalf of others, so if he decides to stay standing whilst his teammates continue to kneel, who knows it may be his downfall due to team unity.
I understand that both my points may counteract one another, but again I see why both sides can be questioned. I don't see him as a racist, but someone who feels we can do more to fight injustice. It would be interesting to hear if anyone knows someone personally who has someone they know who has racist beliefs, who actually has changed their ways because of footballers taking the knee?