You've either never owned one or fear the wrench unreasonably. And they were injected for the better part of that decade anyway and I've never heard of one packing up at 100k. I'm going to go out on a limb and suggest mechanical is not your strong suit.
I am not very mechanically inclined but my dad very much is and he feels the same as you. Refuses to get anything newish because they are a PIA to fix and maintain compared to the the 80’a and 90’s Toyotas he owned. I think he’s driving a 2003 Tacoma now which he maintains himself.
Another Tundra owner here (2017). It’s been a great truck. Nothing but routine maintenance, just like every other Toyota and Honda I have ever owned. That said, I’ve never done in depth research on other brands outside of considering an F150 when I bought the Tundra. They seemed very comparable so in the end, I went with brand loyalty and bought the Toyota.