According to BBC and the like, you're still complicit even if you don't eat beef from Brazil.We slashed and burned our forests before we realised how important they were. The aim should be to learn from past mistakes, not make them again under the rationale it's okay because someone else screwed up earlier. For the same reason, we might implore many countries to skip things like coal-fired power stations and go straight to renewables, or at least if they absolutely most use a fossil fuel, natural gas.
And to be fair, lots of European countries are now replanting woods. The UK has twice as much long-term woodland as it did at its lowest point 100 years ago, hopefully projected to carry on increasing.
Not from Brazil.

UK fast food ‘linked to Brazilian forest fires’
Greenpeace asks fast-food chains to stop selling meat from animals fed on soya from Brazil.


The BBC reveals a shocking fact about the UK's complicity in Brazilian forest fires
One of the worst offenders in the EU

Forests and Deforestation
How are forests distributed across the world? How much do we lose to deforestation every year?


Ethiopia plants more than 350 million trees in 12 hours | CNN
Ethiopia planted more than 353 million trees in 12 hours on Monday, which officials believe is a world record.


You can implore, sure. You wouldn't cover the costs, though. Wood is a building material and used for heating. It's a cheap alternative for places that are poor. Haiti for example cut down all of its forests for those two reasons because it was under an international blockade and as a result, very poor. I don't see Europeans coming to Haiti and planting trees there. I see them pledging money to Haiti, and then not delivering on it. I see Europeans planting trees in Europe, where they don't require it as building material and heating anymore.
Even regarding agriculture, Europe wouldn't take grazing land and plant trees all over it. Yes you can learn from your mistakes, or more specifically the mistakes of your ancestors, but you shouldn't gloat at others that are poorer than you. Their ancestors could also learn from their mistakes unless you help Brazil, instead of, um, laughing at it because people told you their president is a very bad man. Then again this was all a ploy by France.

Amazon fires: Brazil threatened over EU trade deal
Mr Macron says Brazil's leader lied to him as UK and German leaders voice concerns over the fires.

This is a colonialist view of the world. You impose your values on others, and offer nothing of real value in return, except for empty words and snide remarks.