Enjoyable Movie Can't Understand the Negative Reviews

Rating: 9/10 (30 May 2019)

First of all I'm not a Marvel fanboy, I've not seen a number of marvel films, not yet seen infinity war, endgame. It was my son what told me to watch this movie saying i didn't need to see other marvel films, he watched at the cinema when it first came out and then watched it again with me for a second time.
I do however remember at lot of negative reviews on social media, and there are lot's of 1 star reviews on here. So I thought I wouldn't enjoy it...
I was expecting long drawn out pointless fight scenes, predictable characters and no story, not one I "a none fanboy" could follow anyway. What i got was the opposite; an enjoyable thrill ride with a great story, great characters, and interesting plot twists... I thoroughly enjoyed It, did I see a different movie to these trashers?
What the hell is wrong with people....