Nintendo don't feel the need to convince you because as you've said here they've never appealed to you to begin with you you wouldn't bother trying to market meat to vegetarians for example and your assessment of Switch's games is off because games like Doom Eternal, Wolfenstein, Octopath, Hollow Knight, Outer Worlds, Bloodstained, Valkryria 4, Trine 3, Trials of Mana remake etc... are not old great games they're recent or upcoming games, objectively Switch doesn't lack anything that makes a platform great regardless whether it appeals to you the's no real lack of anything here. You're using your subjective taste in your views when the are objective factors that say otherwise and that's the issue in your argument and why some people may find it annoying, for example right now from July to December Switch has a load of games coming out that are likely to be really good more so than the other platforms you may not find them appealing but it doesn't change this fact.
Basing your success on first party is actually far more reliable than relying on third parties both Sony and Nintendo realized this long ago and MS have realized this recently why? Because exclusivity factors heavily in swaying consumers GTA and all that are available across many platforms to the point they aren't selling points for your platform anymore it's the likes of Mario, Zelda, GOW, Halo etc... Third parties at any point can jump ship or on any bandwagon as they're not trying to sell your platform just their own software. Fact is Nintendo has a line up of games that will have a fair share of 10m sellers with possibly some 20m sellers come the end of the Switch's life and this is due to building success off their own back then relying on others to do it for them the result is whether you get the likes of COD or not you still will have 10m-20m selling software to push your hardware.
As i said..., all of those games i can play it right now, whenever i want. Most of them have or are coming even way later than on PS4 or PC, and to be honest..., they are not interesting to me at all. I already told you what games i like.
You saying Switch doesn't lack anything that makes a platform great is completely subjective. It's completely lacking for me, and i'm pretty sure for a lot of people, but hey, I was just trying to explain my point of view which is just that, a point of view. You can try to understand it or not.
I'm pretty sure Nintendo software will always sell more or less great. And i'm pretty sure i will still not buy a console like this from Nintendo. And because of people like me Switch won't reach the success a Nintendo home console could reach.......in my opinion, of course.