then you can passionaltey study people and find if they are not passionate in your passion then what passions they have and make their passions evolve your passions to passionately help their passions.
very valid point- but people do start with passion and iterate being the keyword based on understanding users and the market - however if you jump straight into competition/market without having interests or passion then you are driven by numbers and other people and have nothing to fall back onto in terms of purpose/vision/mission -
so someone passionate in ornamental gourd futures can use the passion in it to underdtand other peoples/passion or interests in it and then in the process develop your understanding of them to feed what they are looking for coming from your evolved passion now - youtube was hotornot pics to begin with!
Why not check your passion and interest regardless of presence/lack of competition and then you can play a long game instead of being in a reactive state.