Yes, it’s ironic tbh. The anti vax people complain that everyone views them all the same way but the the fact is that all of their opinions and views consist of identical sound bites which many of them all repeat over and over. Why are they so mistrustful of science, yet they are perfectly happy to hand over money to pay for cures and treatments that come from dubious and unproven sources?Or that those people are also making good money from this anti-vax crowd. David Icke, who would have been seen as a joke by many (as mentioned above), is probably making a fortune from whatever the hell he is doing. Looks like he has a 'news website' and does some shows, I also imagine he's selling silly things on the side too?
The majority of these other conspiracy theory figure heads probably wouldn't have been looked at by the majority of people either. I'd guess there's a good chance the majority of current people weren't even aware who these people are before COVID happened. Yet all of this has put their name on the map for the conspiracy crowd, or straight up expanded their audience which they may be able to keep by spouting whatever next conspiracy comes along
I honestly wouldn't be surprised if they're making a lot more than the majority of scientists publishing work on COVID tbh