The only alternative is to pressure the party to act right! Besides, it's not really conservatives vs. liberals who decide elections. It's all those in the middle people who vote for the most handsome candidate who actually swing the election.
Sounds to me like you haven't actually tried to hold your electedc representatives accountable. Just try putting "pressure" on your congressman! And how will you do that? By whitholding your $25 donation? By threatening him with your non-vote? By asking him why he voted to decrease your freedom, increase your taxes, and give himself a raise? How, exactly have you tried to put "pressure" that is substantially more meaningful than say, several hundred thousand dollars in campaign donations coming from just one sector of our economy that is not you!
And if you really think elections go the way of the so-called "swing voters" boy, have I got news for you!
Ready? Here it is: Elections go the way the Power Brokers want them to go. You and I have not a snowball's chance compared to multinational corporations, major media conglomerates, career internationalists, and in some cases, even foreign nationals.