Yes, countries are not doing enough to reduce their own emission either, but this is precisely the reason why clean energy R&D is such a good climate policy. Making clean energy cheaper also makes decarbonizing more politically palatable for advanced economies. Especially the US is worried about economic competitiveness.

One economic model suggests that "if a carbon tax imposes a dollar of cost on the economy, induced innovation will end up reducing that cost to around 70 cents".[72] Given that political acceptability is mainly a function of cost, making clean energy cheaper might make carbon taxes more likely.

The current US administration was considering significant cuts to its energy R&D budget and has not advanced Mission Innovation.

But recently it appears as if a unique window of opportunity has opened up for policy research on the effectiveness of higher and smarter clean energy R&D spending. The Mission Innovation secretariat is now led by the EU and Canada. And it also now appears as if there will be a slight increase to the US energy R&D budget. It might increase further in 2020, because there is a chance of a change in US leadership after the 2020 elections, which might affect clean energy policy.

citations here: https://lets-fund.org/clean-energy/