I agree with the sentiment that people should shut up already about the launcher thing. I know it's aggravating, but, there's options.
However when it comes between Steam vs Epic as storefronts, you'd be hard-pressed to try and find anything to like about what Epic has done with their launcher vs the years of hard work and labor for Valve to get Steam to where it is today. Epic's launcher is like where Steam's was - 17 years ago. It's noticeable, you can't hide it.
Thank christ, someone understands. If you tried saying anything similar to what you've said in most Rocket League communities, main or self-created, you got put on blast.
Nobody should ever have their fun dampened because someone doesn't want to be a team player or intentionally grief or throw matches. I entirely understand it in Competition/Ranked, but I'll never agree with how Casual Mode is handled. Psyonix is just asking people to try and stop playing or even supporting their game through MTX.