You are being totally unreasonable.
It depends on the job and what’s at stake. I have been the sole breadwinner as DH was trying to set up a business.
We’d just moved back to our home country. We needed my job to secure (and then pay) a mortgage. We were living with my in-laws in the meantime (which was horrendous).
I was in a very stressful new job, stretching revenue targets to meet, a boss who had no management skills and who hated me, very much sink or swim environment. 50% of staff didn’t pass their 6 month probation.
I woke up every day full of dread, it was terrible. In retrospect it was a god awful business, but I needed to keep that job and it was stressful as fuck.
I don’t think being the sole breadwinner exonerates the working partner from contributing in the house at all.
However I get the sense from some SAHP on here that they don’t want to engage with the pressures their other half might be feeling to facilitate their lifestyle. Before I get lynched, I am talking about some SAHP, not all.