Bottom line, if I'm a politician, why would I care about a group who has historically shown they are unwilling to vote me out of office? No I'm pandering to the elderly vote, raise SS premium, raise medicare premium, give them all the drugs they want on the taxpayers dime.. let the 18-44 year olds pay for it.
The politicians should care. The ones out protesting are probably the ones who are voting. if they're pissed enough to sleep in a park for a couple of months there's a good chance they also took the time out to vote.
They have opened up a lot of conversations that are making many politicians a bit nervous. Polls show that a super majority of Americans (more than 70%) agree with a few of their issues. The main 2 being to get corporate $$$ out of politics, and raising the taxes on those who make a million dollars or more a year.