GP mentioned the Corporate Tax.

VAT is an indirect tax. It's not a tax on profit but consumption, often paid by individuals.

Supplies used as input by companies are vat exempt.

Capital gains are only taxed when they are realized. E.g. Warren Buffett's Berkshire Hathaway hasn't paid a dime in taxes on the 15.4 billion dollar capital gains on its 16.7 billion dollar stake in Coca Cola (a position he initiated in 1987). Since Buffett has indicated he isn't planning on selling Coca Cola ever, those capital gains won't ever be taxed.

I also mentioned taxes on dividends.

Buffet is not the only one operating in market.

Of course they can: by becoming more efficient or by growing GDP.

And how can they grow GDP or become more efficient without investment? Where does that money come from if not from the individuals (buying product/service) and government (spending on infra/healthcare)

Nonsense. If you had looked at the OECD government deficit data [1], you would have known that the US is running one of the biggest deficits in terms of % of GDP (4.94% in 2016 vs 1.546% for the EU as a whole, or a surplus of 1% for Germany). Similarly, personal savings are 2.8% in the US [2] vs 10% in the EU [3] or 50% in Japan [4]

Not sure what you are trying to prove by this random data.

US is the largest Foreign Direct receipent.

Yes, Europe the largest buyer of the US securities.

As US become more attractive to the foreign investors. The trade deficit will increase and will be financed by the foreign investors. Where is the problem?