Typically in legalese like this, “he” isn’t denoting only people who use that pronoun, it’s understood to apply to all people.
The law as you posted seems to be equating owning more than six “obscene devices” with an intent to sell them, or use them as part of a business, whether that actually is the intent or not. It also notes that have multiple “devices” that are the same or similar is also an offense (so having two identical or even similar sex toys even if you have fewer than six total would also be a misdemeanor).
But you can claim they are for medical or psychiatric purpose and have as many as you need:
(g) It is an affirmative defense to prosecution under this section that the person who possesses or promotes material or a device proscribed by this section does so for a bona fide medical, psychiatric, judicial, legislative, or law enforcement purpose
We don’t, we separate into bulky clothes (sweats, jeans, heavy shirts), everything else, and delicates. We wash with only cold water (modern machines and detergents don’t need hot water and it won’t get things any more clean, it just wastes energy). Bulky goes in first, then normal, then delicates. I’ve done this for at least 10 years with zero issues across a variety of machines and water hardnesses.