Your task is not to prove that drugs exist in the homeless community. For your point of them “fucking their lives up with drugs” to be true, you have to prove that their personal drug use was the catalyst for their living conditions. Do that or take the L.
And to check yourself, you might want to look up the prevalence of drug use in more affluent communities. Hint: it’s a lot.
Baldur’s Gate. I’ve never played DnD so there was a bit of a learning curve. I rage quit after two hours, almost returned it. Three days later I fired it up again and haven’t really stopped playing since.