There are not many other options. It would be illogical for them to get F/A-18s when they already have F-16s, and those are not being offered anyways. That would just complicate logistics. The are not going to offered and probably would not spend the money on F-35s or F-15SEs. America is the only nation willing to sell them fighter aircraft (which is why they have older F-16s now). So I am not sure what other fighter they could get.
* I have the right to live, thus I have the right to defend my life from attackers who would take it from me.
* I have the right to my private property, thus I have the right to defend my property from thieves who would take it from me.
* I have the right to self-determination, thus I have the right to defend my liberty from tyrants who would take it from me.
* The only usable tools for these tasks are guns, and thus I have the right to shoot anyone who would take my guns from me.