CSGO's release was 10 times worse than CS2, honestly, the reason why CS2 is getting so much hate is because people were so used to how good CSGO was. CS2 will receive a lot of content once developers fix the bugs, which to be honest is going to take a while but it is still going to happen.
NA CS even though it is not as alive in 2019, is NOT dead. If it is truly dead, then coL would not be top 8 in the world, Liquid being a superteam, m80 be competitive to tier 1, and other tier 2 teams like WIldcard and Nouns producing talents. Don't forget, covid and Valorant took a generation off of NA talent such as S0m, Xeppa, Leaf. It will take time to producing the next generation of talent.
IMO, franchising will be the nail in the coffin for Valorant. I just don't see how talent can be developed if there is almost no tier 2 support. And now currently, tier 1 is taking a hit from barely playing any events. Say what you want about how it spreads influence to different regions, it will die out when Orgs are pulling out due to financial issues and little events.