Firstly, this is in the Daily Mail. Their journalism is not known for being balanced!!! If it happened as is reported then I do not support it. However, I am not convinced that it will have!!!
There are many groups for babies and toddlers which have set criteria for entry and which are funded by local councils. Among these, there are quite a lot of them which I would not be able to attend, as would be the case for many of us. There are groups for young mums, single parents, grandparent carers, etc. I don't complain about this but accept that I am not their target audience.
There are groups which run solely for migrant mums, many of whom do not speak English. These are not particularly designed to encourage mixing in the local communities but to support the women and to inform them about local services.