(Reuters) – Persimmon, Britain’s second-largest housebuilder, warned on 2023 profit margins on Tuesday, after house prices deteriorated and its sales rate slipped, as the political and economic turmoil in the country and a deepening cost-of-living crisis weighed on sentiment. Persimmon shares fell more than 7% in early trade and the company’s warning also dragged stocks of other top housebuilders such as Barratt and Taylor Wimpey sharply lower. Persimmon said “uniquely disruptive political conditions and deteriorating economic outlook” since September led to a steeper drop in its average sales…