patreon is an income scheme, not a "donation" ...
just ask the patreon people you donate to, for the official tax form for the donation. If they cannot provide those, saying that it is "charity" is simply a straight up lie.
the 2nd problem that those ignorant lackwits run into is the simple fact that Patreon "donations" have VAT levied on them.
Which does not happen for donations.
the 3rd problem: A charity is generally a government registered NON PROFIT ENTITY.
I seriously doubt that that is the case for anybody on Patreon who does "content for coin"