What a stupid, anti-intellectualism take. Quite literally every single thing you use in your daily life is deeply ingrained in the research of mathematicians for literally thousands of years.

The list is so long I couldn't even begin to describe

Most research isn't useful. Research on average is extremely useful. Great ideas are rare, and we don't know in advance where they are.

If you do know, let me know and I'll lead a round for your VC fund. I for one would never have predicted that abstract topology would lead to nuclear weapons within a few generations.

Mathematicians never claimed that it was useful. It is up to you to find a use for it.

There is not a lot of money in maths… what grift are you talking about?