Absolutely. Reading ZH will tell you that those permabears are end-of-the-world types with physical gold and bunkers. That scenario is likely to unfold one day, but will you be alive when it does? These people spend a great deal of their energy betting against the world, and frankly the governments of the world have enough money and power to keep this up for quite a while.
It's much smarter to be a permabull. But it doesn't mean you have to agree with the policy decisions, it just means you recognize the market is going to move higher over time! Profit from it, and then take your profits and diversify them as you see fit.