When I was a toddler, my dad was one of the mission control guys for the Apollo missions, and my room was decorated with NASA launch vehicle charts dad got from his work.
And I loved it. I thought rockets and space were the bee's knees.
So I don't personally see any issue with setting your kid up with jetfighter kitch if that's what makes them happy.
These meme books are rarely any good for reading to kids. We got a few when we had a baby and they aren't really that fun to read. By the time they are old enough to understand the context, they are well beyond learning their abc's