I agree and no one is stopping that. But just like a brick and mortar store can be expensive to get off the ground and compete with thr likes of Walmart, Target, Best Buy etc the same is true in the digital space.
Amazon and Google were not always the behemoths they are today but they saw gaps in the market, predicted future trends and it paid off. Obviously now it is harder for others to make the same impact but Walmart was not always the retail behemoth it was today.
Not saying its fair but its the reality of the world we live in.
Walmart and Twitter are private businesses. They both have rules for using their “spaces”. They both allow speech in their spaces. They both have limitations of the speech you can use in their spaces.