why is factions so toxic now?

Well, a lot of factions servers are based off the Pay to Win system, wherein many players use their IRL money to buy things to make them powerful ingame, and the people that don't have the money to buy it just keep getting killed, over and over, and people don't stick around when that happens. The people that do stick around are mainly kids whose parents buy them everything they want, no matter the price, and they often get away with everything, so they DDOS and DOX people that get on their nerves.