Basically the company board has approved a policy where the company will issue new shares if one owner reaches a certain percentage of current shares. Those shares can be then purchased by the existing shareholders (excluding the one(s) that already owns more than the percentage) with a discount.
So Nintendo could have such a policy in place that if one shareholder goes over 20%, new shares will be issued to other shareholders, lowering the value of each share, and effectively also the relative amount of shares (percentage) owned by that one shareholder. That basically leaves only one option, the buyer attempting the takeover would have to negotiate with the board directly. And in the case of Microsoft, the board would laugh at their face.
Maybe they could achieve the takeover via shell shareholders remaining under the percentage each, and get them to vote in a new board that would revoke the policy, but that’s way more difficult to pull off.
Feminism is a tool of the ruling class, like racism. A way to turn the working class against each other instead of the ruling class, the owners. That’s why they give feminism so much space in the media and in universities, because it doesn’t really touch the real issues of the world, the billionaires and millionaires exploiting everyone and everything. It doesn’t threaten their rule over the world, by design.
My sex wasn’t allowed to vote in my country 120 years ago either - because only the nobles, the landowners, the priests and the bourgeois were allowed to. Most of the people, regardless of sex, were not allowed to vote.