Cloudflare is the only company that provides DDOS protection services for small websites while everything else is inferior as well as hyperinflated due to being targeted at major companies.
We need a company to provide DDOS protection services that will serve us and only us while being content neutral in terms of profiction site policies.
It wouldn't take them or the sites down necessarily, the point is that Cloudflare only needs x servers per site/customer dedicated to fending off attacks because most of them are paying for the protection but not likely to need it. A right-wing protection provider would have more customers that could attract attacks, so if they don't have other customers to balance that out then they'll need 2x, 3x, 4x, or more servers per customer. More than that if they themselves attract DDOSes for being known as specializing in catering to the target group. All those extra servers will eat into their profit margins and raise the prices for customers, which would fall entirely on their right-wing base (potentially the DDOSers' goal) if they don't diversify their customers to some extent.