I can see where you are coming from and to an extent there is some truth in it.
A massive market to be exploited that has a single currency & language is a marketing dream.
So that allows products that have a marketing potential to be brought to the market quickly.
However the original infferance, that without the USA these things would not have happened is still there .
And that is the point I would argue against as it is fundamentially racist .
No peoples on the planet are any smarter ( although I often believe Australians are the stupidist ) than any other .
Then there is the question of what is "better"
The indiginous peoples had lived here for what is now thought to be longer than 100,000 years
During that time no river had become so posionious that it is toxic to the touch let alone drinking it .
No plant , animal , nor instinct had gone extinct,
The people suffered almost no life shortening diseases and lived to an average age of 70 ( contested by some ) with the oldest remains being dated at over 90 at the time of death.
They had everything they needed for living according to their culture worked for less than 3 hours a day on average and managed to avoid massive wars apart from a couple of warrior tribes from Tasmania & the Cape . Children were all looked after as were the elderly there was no poverty & no homeless , even the dissabled & mentally ill were looked after.
I have almost no factual knowledge of American natives but from the little I have heard, their life style was not much different
Our children could very well be the last humans to walk the planet , if the worst case the scientists have been talking about comes to pass .
And it looks very well like they could be correct as storms have been getting more violent & destructive each year, droughts are far more intense and floods substantially more severe.
Your Hurricanes are becoming more intense as are our cyclones .
Then there are the problems like Covid-19 that come ultimately from over population and because of crowded living style spread like wild fire and on the subject of wildfires, yours this year look to being eclipsing last years which were the worst on record.
So if better is having your kids kill themselves because some one did not like their face book post fast enough, or having your daughter lured to her death by a sexual pervert on a dating app, then perhaps we are in fact better .
If better is working 10 hours a day to make sure the roof over your head is secure and you won't end up living in the gutter when you get old then yes we are better.
DEcades ago when I had a marital crisis I had to revaluate my life and part of this was to look at everything and ask "will this improve my life " and 90% of the time the answer is no
Thus there is not a 72" oled TV sitting on the wall over the top of the 2000W 30 speaker home theatre, no 700 litre French door fridge with ice cub dispenser in the door gracing the kitchen etc etc etc