We're already giving a share to those poor and handicapped politicians. They need our support to afford their huge villas, yachts and jets.
Isn't working for the benefit of others a charity?
Jokes aside, why do you want bitcointalk to handle this for you when you can donate in bitcoin directly? For instance here:
https://bitpay.com/520663/donateThere are also altcoins that were made for that exact purpose. For instance, donationcoin
https://coinmarketcap.com/currencies/donationcoin/