hashem is everywhere ask a local rabbi but if you use $100 from maaser and win $100K I cant see why you wouldnt have to give $10K.
Oomis it’s your preragotive to do what you want with the money but when you buy tickets from an organization you’re supporting them. If you’re that anti a place dont buy tickets. Say Neturah Karta (I figured they’ll go through the edit) has a raffle I would not buy a ticket because I am virulently anti them.