What would it take for 3rd party sales to be larger on Nintendo Systems?

[TeachMeHisty]

Some reasons why players purchase less 3rd party games (on a per game basis) than on other systems:

1. Players tend to purchase games on Non-Nintendo Systems because historically, Nintendo's have proven to be the one that are the least reliable in regards to availability. This behavior has been habitualized.
2. (Too) much weaker hardware has naturally hindered the engagement of 3rd parties on Nintendo systems, which feeds into point 1
3. Games that do release are basically guaranteed to look and run noticable worse, offering an objectively inferior gaming experience, due to them not being made for that much weaker hardware originally. Many people arent willing to trade the experience with the game for a gimmick that's only cool for a couple of uses or portability whereas there are fewer people that view portability as a necessity.
4. Nintendo markets their systems in a way that puts themself at the front center with little to no room for others to shine. This causes people to associate Nintendos system primarily with Nintendo's franchises, turning them (at least partially) blind to whatever else there may be.

Do the reverse to get more people to buy 3rd party games on your system