As the left makes itself more narrow in the beliefs it permits...

Ace of Spades writes,

...as the left makes itself more narrow in the beliefs it permits, it makes the right bigger. The left is now dogmatically, militantly in favor of a very specific ideology many find toxic; that means "the right" -- defined broadly as those against the hegemoic leftist culture -- has grown simply because the left keeps exiling more heretics.

The right doesn't have to do anything much to add to the anti-left coalition while the left continues its purging/exiling madness.

Read more here.