I sort of want to ask this question too. If you can't carry things outside the home you just make your home bigger so you can carry things?
Without the eruv, wheelchair users are not allowed to ride on Shabbat or on other religious holidays
And I find this a bit weird too. A wheelchair user can't leave their home on certain days but people with the use of their legs can? Surely that can't be what God intended? I guess there weren't wheelchairs in biblical times?
Sorry, I sound flippant but I don't mean to. And I realise I'm picking a tiny part of everything that's been said here.
I have a Christian faith and struggle sometimes with the difference between what God wants from me and what has been built up around my faith by humans since biblical times. I keep going back to "What would Jesus do?" and not "What did Pope XYZ tell us we should do in the name of Jesus?" for example.
Much of your faith seems the opposite, you are keeping true to what God said and not letting it be influenced by human wants and desires, or by modern developments which might be fleeting in the grand scheme of things. And I can see that there is great peace and comfort in that.
But then there are odd things that jar, like the wheelchair and pushchair thing. We could all walk to the park but my wheelchair-using cousin would have to stay at home?