Australian Beef - A huge threat to U.K. farmers

The government are reportedly trying to push through a free trade deal with Australia. I wonder why. Some Australian beef farms are industrialised factories with over 400,000 cows fed on grain. Welfare standards are lower that the U.K. ( which aren’t actually that high), even with the cost ( the environmental cost not mentioned) of long distance transportation, our much smaller family run farms will not be able to compete, apart from supplying the smaller niche organic, and much more expensive, market. Farmers are worried this will be the thin end of the wedge that will finally kill them off, especially the smaller farms in Scotland and Wales. Is this just a cynical exercise to show that we don’t need the EU that will actually further damage our economy and come at a great environmental and animal welfare cost?