Arguing that it is a 'lifestyle choice' closes down any discussions on the politics of Motherhood, if you do that, those discussions on childcare, maternity rights, financial support e.g child benefit are automatically seen as less important as after all, it's a 'lifestyle choice' and why should any of these things be afforded to Mothers when the choice is wholly a personal one! If that is your political outlook, fine but you must also think there is no such thing as Society. It is Neo liberal, Thatcherite spoutings, that are all about the individual.
The opposite of the politics of Motherhood is not shaming women who don't want or can't have children, why would that be true? A Lifestyle choice is demeaning to Mothers and seems to not acknowledge the labour of Motherhood which is bringing up children to be the future adults that contribute to the functioning of society. Acknowledging that, does not equate to dismissing women that don't choose this path. I think if anything, this thread proves the opposite, that it is perfectly acceptable to belittle Mothers and dismiss them all as having no ambition, implications that Mothers are intellectually stunted to the point of being stimulated by playing with 'blocks'. Not exactly sisterly support there and this all stems from the inaccurate label of Motherhood being a 'lifestyle choice' as women on this thread feel justified in mocking a choice, being a Mum is reduced to a preference like your taste in handbags. Whereas in reality, what you are actually doing, is mocking other women that happen to be Mothers, whatever happened to female solidarity!