Here is Mark allegedly "celebrating" the COVID-19 vaccine rollout. https://www.iheart.com/content/2020-12-16-mark-hoppus-celebrates-covid-19-vaccine-in-the-most-blink-182-way-ever/
Recently he announced his diagnosis https://pagesix.com/2021/06/23/blink-182s-mark-hoppus-announces-he-has-cancer/ https://www.youtube.com/watch?v=A3ZLX1swZPM
Most certainly. Disregarding the T-cell issue (which I don't doubt), dealing with the vax is a huge distration/energy suck for your body.
And I doubt Mark is the kind of guy to know to drink alkaline water, avoid sugar, load up on Vit C, etc.
It's sickening to see these millionaire "artists" suck up to what they perceive their audiences want to such an extent. Only to play the same damn songs night after night after night...