No, taxes and tax-subsidized services are not charity. Period. End of sentence. No really I mean it.
Charity depends on the giving, not the taking.
If someone robs a bank, and then a year later gives cash to an orphanage, that's still charity...charity pertains to the gift, not the acquisition of money.
On reflection, it wouldn't be strictly charity that made Slim a billionaire, but he's certainly in no position to lecture the world on handouts versus hard work.