Is this claim based on any evidence or research? "Countries at risk of losing 20-30% or more of their arable land over the next decades are not threatened by r

Is this claim based on any evidence or research? "Countries at risk of losing 20-30% or more of their arable land over the next decades are not threatened by reduced profits they are threatened by famine, starvation and huge population shifts." I say - that is bullshit. Belarus lost more than 20% of arable land and around 30% of forest land after Chernobyl accident in 1986. It suffered literal hell in social sphere after the USSR was ruined by its elites in 1991. But just 20 years later, by imposing special 17% tax on all businesses that was used to recover arable lands and forest lands from radionuclide contamination, balanced social policy and successful research in agriculture, it is doing just fine! It is HOW you deal with loss of arable land that matters. 2008 - Syria. They stupidly dug deeper wells until exhausting their precious ground waters to nothing. Result - 2 mln former farmers filled favelas of large Syrian cities. At the same time, same area, same problem - Israel invested into desalination tech and plants and successfully kept its agriculture running. It is not lost per se that causes famine and social shifts, it is right or wrong policy of the society that does it. We are humans - we can change things. But not 'saving deserts' or 'save beavers'. We are damn good at saving ourselves when we are together. Like Jews.