If their actions are solely governed by how many votes they can garner, then they should suck up to the 80% of voters who support Arizona and enforcement of immigration laws.
They seem to believe that pandering to those who empathize with illegal aliens will add to their base whose votes they can already count upon. Unfortunately, elections rarely revolve around a single issue, and at this time illegal immigration doesn’t seem to be a top priority to voters.
If more states do follow through and those states subsequently see a reduction in crime and unemployment, this issue could quickly become a priority down the road.