Agreed. Most negativity and pessimism I hear if from JW's.
Just listen to any of their "prayers". As they meander through 10 minutes of mostly incoherent thought, the main words a person will hear are: troubling times, uncertainty, depression, depressed, illness, sickness, difficulties, discouragement etc. And all the while begging Gee-HO'-Vuh to "help those who feel these things to know we LOVE them." And letting God know that they look forward to the end of this system very soon.
I asked one of those eldurrs one time, "Why, instead of asking God to let them know you "love" them, don't YOU LET THEM KNOW?" And, "When you pray for the end of this system, why not use different words that mean the exact same thing, and pray for God to kill 8 billion men, women, and children very soon?"