If you are keen to become a pilot and get an offer for an airline sponsored "zero to hero", just do it. You are young enough for fail shots anyways.
Nobody is able to estimate how the job market will look like when you are finished!
Over the last 50 years we have seen all kind of quirks. Two examples off my circle: when a friend started his physics university studies, there were no unemployed physicists, when he graduated 5 years later, almost nobody got a job, his buddy studied archeology and expected to go directly from graduation to unemployment, but at the same graduation year, they all got hired due to very high unexpected demand.
Do what you like to do and do not care about the future, it will happen anyways. If you have the funds to do a private license, do so and continue as long as it brings you somewhere.