Me having OCD is actually making my family act grosser on purpose

Once they found out how often I wash my hands they have stopped washing their hands after using the restroom entirely, as though they are “proving” to me that it is “okay”… now my mom is telling me to “not wash my hands after I pee” as an exposure, like she thinks she’s helping me… and she never washes her hands after using the restroom and serves us food and if I decline she is upset… why can’t people understand that there is a spectrum, and while I may be way too far on one end, that doesn’t mean that the other extreme is the ideal? So now I have to deal with the guilt of knowing I spurred them on to be gross, just for having OCD. My sister had diarrhea one night and didn’t wash her hands and for some reason that is encouraged behavior in my household and I am the weird one.