You're arguing in bad faith. Yes the new reactors are expensive and late but also a new class EPR. There is also no plan from France to transation away from nuclear.
Ok, so the delays and cost overruns at Flamanville were caused by a new reactor type (and this wasn't factored into the original budget estimates I presume?). What were the cause for the delays and cost overruns at Hinkley Point, Olkiluoto, and Vogtle? France aims to reduce nuclear's share of its electricity output from 75% to 50% by 2035. https://www.reuters.com/article/us-france-edf-idUSKBN1ZK0RL We will see what happens, but given the record-low electricity prices and the Flamanville fiasco, France's nuclear phaseout may go even quicker.