I also purchased the game but these days is free to play which is not the best feeling for someone who spent some bucks buying it.
Anyway, I know what you are talking about because CSGO is considered the 2nd most toxic game in the world and it's impossible not to meet that kind of people who break the whole fun but it's important to play with some friends so you have control when they try to kick you or if they become too toxic.
At least that's how I handle the things and avoid playing alone 🙂