TTIP is very similar to deals that are being struck all over the world and which are in the most in favour of the US, or at least thats the reporting that I have read.
Lord Owen however is wrong that if we pull of the EU that we will be immune from TITP, the UK would have to negotiate a seperate trade deal with the US and would have a much weakened hand as the US is the second largest trading partner for the UK, whilst the UK is 7th for the US. This gives them a much larger advantage
He is also wrong about this: "Current levels of migration are causing unsustainable pressures on our public services and we can see that the NHS is creaking under the strain.”
Many of the NHS problems at the moment are being caused by the swingeing cuts to social care leaving beds occupied that could be used for other purposes. The most comprehensive study on the fiscal costs and benefits immigration conducted so far has shown that EU immigration has a net fiscal benefit to the UK.
So in some ways he is right but in others wrong, TTIP is worrying, but I think we are more likely to get a better deal from within the EU, as the EU is the US's largest trading partner (more so than NAFTA) and with the UK inside the EU we also give the EU and advantage when discussing services.
Trade negotiations have never been in the news as much as recently, but the BREXIT supporters are a bit mistaken if they think that we will get as favourable deals from the EU and the US in terms of trade if we are outside of the EU.