Protons are made of 3 quarks and a bunch of tiny gluons. if a big proton existed, it would be made of different or more quarks/stuff, and be called something el

Protons are made of 3 quarks and a bunch of tiny gluons. if a big proton existed, it would be made of different or more quarks/stuff, and be called something else. Now, is there a reason why there isn't a something else that acts like a proton? That gets into Elementary particle physics and what combinations are stable and have matching charge. Quarks have charge +- n/3 and generally come in triples. Could the number of gluons vary? Maybe? But they wouldn't affect the size measurements much? And variations wouldn't be stable?