Im guessing you were talking about paralleling 2 x 2000w inverter generators together to make 4000w.
guess what, most generators when parallel can only put out about 3200w 'continuous'.
its smarter to invest in a 3000w+ inverter generator instead.
But Im sure you knew that anyway......
You are correct on the continuous watt statement as with any power supply.
The rest is your opinion and not fact. We all have different needs and opinions.
But I'm sure you knew that anyway...