The more I think about it, the more I think it might be right for me to personally suffer a cost, but for it to be structured as an increased tax on higher earners than a tax on home workers. Because, as has been pointed out repeatedly, the people who benefit the most from staying at home, and the people who are the most reluctant to return to the workplace, are the disabled, mothers and carers. Homeworkers could be low earners. They're not all well-paid white-collar workers.
Tax the higher earners and the men shoulder their share too. Which is only right.
You can't assess from someone's personal taxes whether they will definitely buy a sandwich from Pret, but you can assess who is most likely to be able to afford a reduction in take-home salary. Spoiler alert: it's unlikely to be the people on NMW, or the people who are only just about better off in work than looking after their kids full time.
As much as I don't want to pay more taxes, I'm not prepared to put my personal wants above the personal needs of people with more complex and more financially precarious situations than my own.