1 - Change the laws regarding charitable donations, and their tax exemption.  Right now, giving to a partisan operation like Heritage is a tax-deductible charitable organization.

2 - Tie tax-exempt NGO status to the actual performance of charity, with a maximum %20 percent overhead and expense cost, or something like that.  Current law allows organizations to maintain their tax-free status while barely doing any work that could be considered charitable.

3 - Organization like this would not have the resources to keep up the wingnut welfare network if there were few people in the USD $1 million dollar range of total assets, and almost nobody in the $5 million dollar and up range.  The simply couldn't raise the donations.

4 - Decentralized and independent media would also help.  Some would be conservative, as is only appropriate in an open and free society.  Many would not be, and some would be militantly so.  Shouting down BS in public can help.  Sometimes.