I'm sorry to hear you find the content on the sites within in the SE network toxic and unwelcoming.
The site offers a good tour, an help centre, per site meta's and moderation tools and privileges for the community members to curate all the content that is posted on the sites.
Anyone with an account can ask or answer a question where the premises is that the provided content is deemed useful (in scope, unique, clear) for future visitors. For everything that happens on any SE site today, there is history, a thought process, design, lessons learned and we're proud of that history which is why you find links to that in various places. The current articles in the help centre are an example of the learning and adapting organism any SE site is. As such the help center article is up to date but you're free to discuss changes that will help to improve our content, both old and new.
If you revisit what is offered and carefully consider that I can't imagine you won't find that valuable. It is up to you if you like our approach enough to give an SE site another go. We're happy to have you.