There are solutions for all of these issues. You can use alternative frontends like Invidious or Piped, dedicated desktop apps like FreeTube or NewPipe and Libretube on Android to access YouTube without ads or tracking. You can also use throwaway email addresses to access websites that demand your email and there are privacy frontends for most social media sites (e.g. Libreddit for the site that shouldn't be named, Nitter for the other site that shouldn't be named, Proxitok for Tiktok, Proxigram for Instagram, etc.)