What you should understand about content and video creators is that they always looks for an attractive point like things to make people click on their videos to fetch them viewers nd likes,  no content creator would like to sell out things that will people not to click on their videos. What to do as a youtube lover is to just filter those videos if they aren't giving you what you wanted from them and of course not every videos you must be clicking online to watch and most of them are very misleading especially it gives you bad misrepresentation of bitcoin and also some altcoin which might likely entrapped you in by doing investment.

See to make investment I would advise you not to follow any advertisement on social media or youtube because they are doing that for their self interest since they are holding some percentage of token/coin from that project they would try all their possible means for people to invest while the price increase for them to cash out big time. So it's better to avoid them and chose few of it that gives you what you wanted and not to focused in all videos.