Other people feel the exact same way you do about keeping snakes. If you can't support other people taking proper care of animals they love to keep, why should they support our right to keep snakes?
The agenda by HSUS and others is to end ALL exotic (and possibly domestic) animal keeping. Their strategy is go after each group piecemeal, betting that snake keepers won't unite with large cat keepers, etc. This is the same strategy that was used in Great Britain to make firearms illegal (played long gun hunters off of handgun self dense keepers).