Protectionist

[GarryDrold]

relating to actions by a government to help its countrys trade or industry by taxing goods bought from other countries:

[Little_Girl]

protectionist laws or methods are intended to help a countrys trade or industry by putting taxes on goods bought from other countries or by limiting the amount of goods that can be imported:

[Oralee]

An advocate of the policy of shielding a countrys domestic industries from foreign competition by taxing imports.