Some of that is weird, but the reality isn’t too far off: https://www.ewg.org/sunscreen/report/the-trouble-with-sunscreen-chemicals/
This site compiles a lot of detailed information about each ingredient being reviewed by regulatory bodies and summarizes the research around the ingredients.
Manufacturing processes also introduce benzene into many sunscreens despite it not being an ingredient. Benzene is a known carcinogenic cause of leukemia and other blood cancers.
But yes, there are whackos on youtube.
This is what happens when you gut your education system. You get brain dead morons spreading potentially dangerous health misinformation.
I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy: