I dont agree, because I firmly believe that there should be One Law for All, and that Religious Courts have no place in a secular society. Not to mention that so far, they have been known to constantly overstep their bounds, esp into criminal matters, such as domestic violence.
And on top of it all, It creates pointless sectarian tribalism.
Keep in mind, arbitration mediation still has to be in line with the law. Now, since what you are describing, arbitration dispute resolution that does not pass verdicts that are unlawful, already exist.....what are you (or the 'jurists') actually calling for?
Thats the part I cant wrap my head around. As far as I can tell they want more power, beyond simple arbitration. Else, there is simply nothing to 'call for'.
Ok well you need to firstly deal with the mantra of one law for all. If in civil society certain parties prefer to accept obligations over and above what is deemed the basic standard, or if the law offers differnet avenues for resolution as our legal system does it is not a simple one law for all. in fact the mantra is scaringly totalitarian once you consider its possible implications. In civil law we have already decentralised. If by one law for all you mean the current model then you already accept religious courts along with political and other types of affilitation such a labour dispute resolution etc involving trade unions or other economic and political groups. If you mean that then I have no difference of opinion with you. Especially as you quite rightly say it must be in line with UK law (ie not contravene it)
If however you wish to ban such courts (jewish, socialist or other) than i take issue and we would need to change our current system.