Ordering only 2 carriers mean not fighting any one who is going to fight back.
Politicians absolutely call the shots - no question. (My goodness, we agree on something.)
France, Spain, Italy, India, Brasil, oh and us - all countries who will never engage an enemy with any military capability. Or B...
...they/we all have only 1 or 2 CV's because they're frikkin' expensive and that's all we/they can afford. As an individual nation we could not possibly stand against an Iran, China or N.Korea. However - we see our part in the affairs of the world as having more than just a diplomatic say, we want some teeth as well. Additionally, and possibly more importantly, having our own capability allows us the autonomous action we may wish to pursue, whether it's because we're on the spot first and can't wait, or because we are pursuing a line of action without any other support - the FI spring to mind.
If you want to end up with the niche OC of the Netherlands (and what the Cloggies do, they do right well) then fine - but do not complain when you find yourself queueing up to the EU/UN to get them to do something about your problems. Good luck to us all if that's the path we go down.