Anyone who's bitter about people "getting paid to do nothing" should start by taking it up with trust fund babies and rich people who have never worked an honest day in their life.
If you're on unemployment YOU have paid into the system and it is YOUR money that you're getting back. I pay my fair share of taxes and am 100% OK with them going to give people a little bit more (or even a LOT more) so that they can feed their families and keep a roof over their heads, or even *gasp* take a vacation to relax from all this crazy stress. I'm one of the only people still working on my team, under an extreme amount of stress to deliver the work of 6 other people, and I wouldn't trade that for the gut-wrenching uncertainty of if/when I'm still going to have a job in the next 2 months.
The idea that this will incentivize people to stay unemployed is patently ridiculous - unemployment benefits are a short-term solution, no one voluntarily wants a multi-year gap in their resume and then to be fighting with all the people who were permanently laid off for positions from the very few companies who are even hiring after this. If you have a stable job that you can go back to after furlough, you're going to. If you want to use this time to be selective about the next move you make for your career so that you can be making a better salary or working in a healthier environment or get better benefits, there's nothing wrong with that. But to say that most people who are getting a slight boost in their income right now are just going to suddenly get lazy and never go back to work is silly.