You don't edit previous posts because the answers were "wrong." You edit them because you were destroyed and want to change history so that you weren't destroyed.
Your original post is quoted and addressed. If you want to narrow it to an extremely narrow, specific area where your (broadly incorrect) statements have an inkling of relevance, that's your choice, but it should be done AFTER conceding that your original post was completely wrong and competently dispatched with.
Anything else is, well, something that rhymes with "bishonest and brolling."