Yea, based on what you are saying, there is no comparison. The dancers work a LOT harder. I consider myself a pretty hard core soccer dad but I'd never put my kid through the schedule you are describing, it sounds insane.Nope you can't. The level of intensity and quantity of training required for competitive dance is on a whole other level from club soccer, its not even close. My daughter's training starts at 12 hours a week and easily goes over 20 hours many weeks while always moving on her feet. There is no room for anything but perfection in dance, the pressure is immense. The skill sets required in the various disciplines are insane. The abuse to their bodies can be dramatic. These girls contort their bodies in ways that are not human. Soccer is child's play comparatively speaking, although you do have contact injuries in soccer. The girls do it for the love of the sport, camaraderie and competition...there are effectively no college scholarships for dance.
IMO a good schedule is 3 1.5 hr. team practices, 1 game per week, and 1 hr. light self practice consisting of some combo of first touch drills, wall ball, cones, juggling, shooting. If he misses a team practice or it's less than 3 team practices, I try to get my boy into a group lesson at my local indoor soccer center.
I think it's counterproductive to do much more than this, unless your kid is a Pulisic and has the energy and drive to do more. The kids have to rest, recover and my kid in particular has to have time to goof around.