I hate how TVs give you less features now instead of more

It does, it comes with an adapter to plug in that gives it composite input.

Hmmm... perhaps it does, it would be one of those things I leave in the box because I don't think I need it and then forget about it.

@sarkwalvein IDK, do you want to be able to lift the TV? I wouldn't mind more durability, of course, but holy hell, do I not want to have to lift a CRT if I can avoid it as I'm not Stone Cold Steve Austin or The Governator himself!

No thank you, I am too old to lift a CRT my back would snap, but oh well... my TV is just 20Kg and I don't think making the frame more durable will add more than 5Kg to it.

HDMI switch, not splitter. A splitter takes one signal and sends it to multiple displays.
You should get a powered HDMI switch, they are more reliable, or if one of the ones you have have a DC in, get a power adapter with the right specs for it. I have 2 unpowered ones, one of them barely works and the other (which is a known brand, Aten) worked fine, until I tried it with my Switch and it just didn't work at all.
4 HDMI slots and component are fairly common on more expensive TVs, although not a full component in, it usually uses a single 4-pole 3.5mm jack which you need an adapter for to break it out to 3x RCA jacks (usually comes in the box) for the video signal, while audio gets its own jacks.
My mom's TV (bought last year) has such a jack. It's a Philips that was worth around ~$900 new. My Samsung Q70R bought early this year only has HDMI, LAN, USB, and coax input for satellite and cable/antenna. No composite or component in sight. It does have 4 HDMI ports though. So I guess composite/component inputs are starting to go away completely.

I think they have realized no one uses composite in on modern TVs anyway because it looks like shit, the only people who still use composite in are people who play retro games, which people prefer to use a RetroTink/Framemeister/OSSC for anyway for better upscaling and lower latency, if they aren't just playing them on a CRT. The upscaling of analog signals on modern TVs has never been very good. So it kind of makes sense to omit that.
Not having component in kind of sucks for some people though, since the early Xbox 360s don't support HDMI, neither does the Wii, and if you don't have a Wii U component cables are still the best way to play Wii games apart from emulation.