Right wingers keep their protests to the issue at hand, while the left, whatever the issue, brings out every left wing cause from the granole-muching enviromentalists to the hairy-armpit feminists.
And let's not forget that those on the right tend to be gainfully employed at occupations that keep the economy running and therefore don't have as much free time to go out andwander the streets waving signs.
Tell me about it!