I think this will not affect bitcoin's growth it needs support from the economic news background !
I disagree in your statement as whether how small or big the investor are they will still be contributing in the market, and with the ban lift by google in crypto ads no matter how small its impact is it will help indirectly, also remember that google is one of the biggest companies that rule over the internet that is why its impact will be good in the current situation in the crypto industry.