Do What Works For You
If you want to see change and get results, then you must find something that works for you and then buy into the process.
I remember when I started playing piano. I hated it. All I wanted to do was go outside and play. (I was 10 or 11 years of age.) Sitting on a bench and reading notes drove me crazy... As you can see, I didn't want to get better at playing the piano; I had zero desire to change what I was doing, and results were non-existent for me in that realm. (To this day, I wish I had the desire to play the piano. Being able to strike the pearly whites with precision would be pretty dope!)
Maybe I was suited for the guitar, or perhaps I was meant to pound away on a drum set. I'll never know because I didn't search for an instrument that worked for me. As a byproduct, I wasn't able to buy into a process of improvement. Because I lacked drive, and because I failed to find my groove, I never got to the fun part -- seeing myself get better at playing music!
The exact same thing applies to strength and conditioning, and fitness. In order to make a way, there must first be a will. You have to want it. If you are content with doing nothing, that's your call. I can't say I agree with your line of thought, but I respect your choice. (Now, if your laziness is causing a drain on society and you're soaking up hundreds or thousands of dollars in tax-payer money because of obesity, well, that's another issue.)
Next, you must find something that works for you. FOR YOU! Just because someone says run, do CrossFit, or practice Yoga doesn't mean you have to. Perhaps you like kickboxing, or maybe you're made for swimming. If so, great! Do that! Become the best friggen swimmer you can be.
Lastly, you must trust the process; you must know that results come only when you embrace the grind. Days; weeks; months; years; it takes time to get to where it is you want to go. You can't be one foot in and one foot out in this field. Be all in on what it is you love (or at least like) if you want to get to where it is you want to go.
(1) Find your "why." Change and results will follow if you know why you're doing something.
(2) Find what works for you. There are hundreds of fitness platforms out there; find one that works for you.
(3) Find the fortitude to endure. You will only reap results if you can consistently show up and repetitively #dowork.