Wouldn't we need a worldwide disaster or an alien invasion to change the people?

I have no idea, I would hope it is many people.
What will be the catalyst for that change?

It could happen but question is how many people are ready to change ?

Could we even survive an alien invasion ?

Could aliens survive a human invasion?

Humans haven't even invaded Mars yet let alone Alien invasion Tongue

, do you think it's possible in next few decades ?

Do we have to go to Mars in order to classify as an invasion? Could we be the actual Aliens that have invaded Earth?