If Leif Erickson and his raiders landed in North America, I assume they would have wanted to stay because of the land and water outlets back home... Did they not find anything worth it to them?

Bonus question: Were they met by hostile defenders (I.E. Native Americans)? We're they repelled in such a harsh manner that they tucked tale and abandoned a potential conquest by coming back better supplied?

Was any of the Vikings, being in America, before any other European explorers even a legit historical happening?