It seems you misunderstand the goal of goverment.

This is your opinion of what you want governments to be, not what they actually are.

What is the point of not researching and having bigger budget, if it can’t buy thing that did not get created?

What a lot of negatives and hypotheticals. All solved by getting a return on investment and having that money to do more things with, including research.

And then on goverment level there is no such thing as copyright or patent.

I’d like to introduce you to the World Intellectual Property Organisation (WIPO) which is an intergovernmental organisation that does precisely what you say doesn’t exist.

They STILL need to put in money to create their own product.

Sure, but the cost to duplicate the product is tiny compared to researching, developing then creating a production run for it. And this fake normally severely impacts the profits for the inventor.

But now we’re just repeating the same arguments.