They're not condemning the act of charity, they're condemning the working conditions he subjects his employees to.
Yes, the act of charity is better than nothing but it seems people think that money might be better spent on improving the quality of the jobs he offers from the dismal self-destruction they are famous for. Also pointing out that donating to charity ends up being tax deductible so it is truly the most selfish public display of giving and that treating your workers with human decency would be a selfless act he seems unwilling to do.
Yes, the act of charity is better than nothing but it seems people think that money might be better spent on improving the quality of the jobs he offers from the dismal self-destruction they are famous for. Also pointing out that donating to charity ends up being tax deductible so it is truly the most selfish public display of giving and that treating your workers with human decency would be a selfless act he seems unwilling to do.