You're an easy target, and this is a meme site. If you think you can waltz around this place saying things like "makes me retarded" and expect that someone isn't going to use that against you - then I think you have a lot to learn about how humor works.
As far as mocking George Floyd, well, the guy didn't really give us much choice. Multiple felon, drug addict, passes a counterfeit bill, and resists arrest.....There is no part of that series of events that would indicate a happy ending is in the cards for George. Couple that with months of rioting, looting, burning buildings, and anti-police rhetoric coming from the left - and one struggles to find a glimmer of light at the end of a dark tunnel.
Sure, I can appreciate that everything isn't a joke - but at the same time, I contend that the most important things should be. Being able to find humor in everything gives me the ability to see everything objectively. That kind of thing gives me a multitude of advantages over the lesser creatures who wallow in the quagmire of consideration of others feelings. I'm way beyond caring how you feel about anything, because it gives me an advantage over you - a weapon to use against you. The things that cause you to crumble, strengthen my armor.