Are there frustrations when moving to a new country? Absolutely. If you go in expecting every local government agent to be grateful for your USD shekels, you'll be sorely disappointed when you find out they'll make 10x as much effort to speak English as you do to speak their language - but 0 x 10 is still zero.
But if you're polite, persistent, and committed to integrating - I've never failed to find a welcoming community in at least three different countries now.
In truth, my least favorite people to meet now are "American Expats" or instagram influencers - at least fresh ones. You've been abroad for ten years? Let's talk, you probably have some perspective. You're still trying to figure out where Trader Joe's is? You're probably not that interesting.
If you're traveling - enjoy, be polite, you'll be fine. If you're _moving_, it's on you to make the effort and be a part of the community, not the communities job to acclimate to you. Join a few meetups, facebook groups or whatever the latest trend is - meet people with like minded interests, and it works fine. If you're surprised to find occasional micro-aggressions in small towns, well... bless your heart.