Macron made multiple concessions that failed to extinguish the anger of the yellow vest movement, named after the fluorescent protective garments the protesters wear.
To Marlene Schiappa, Secretary of State for Equality, the fundraising kitty was "a shame".
On Monday, the boxer's relatives launched a fund raising operation in Leetchi, an online fundraising platform and a unit of insurer of Credit Mutuel Arkea bank, to help pay legal bills.
But on Tuesday morning, it announced that it had closed the fund "in light of the amount raised" after 7,801 pledges.
French President Emmanuel Macron posted on Twitter his condemnation of the weekend's most violent incidents, decrying "extreme violence" against "the Republic, its guardians, its representatives, and its symbols".
Benjamin Griveaux, the official spokesman for the French government, on Wednesday claimed that some Italian ministers and the RT broadcaster have similar stances as they are supporting the yellow vests protests that have been shaking France since mid-November.
"I was gassed with my friend, my wife, and at some point I was taken over by anger, so yes I acted badly".
Prime Minister Edouard Philippe in a TV interview late Monday announced plans for legislation banning "troublemakers" from attending demonstrations following weeks of clashes between yellow vest supporters and police.
"Those who question our institutions will not have the last word", Philippe said, declaring that 80,000 security forces would be deployed across the country for the next round of protests.
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Still, more have suggested the country leave without a deal and then negotiate a trade agreement. He wrote: "Parliament can establish that it wants no deal to be ruled out".
The SCSI-CFDT police union, for its part, said the funds should be seized to compensate the two officers targeted by Dettinger, who were removed from duty while recovering from their injuries.
"We are going to get our bread back...you're making money with our dough, and we're fed up", said protester Maxime Nicolle in a video message shared on YouTube.
Since the yellow vest demonstrations began, 5,600 people have been arrested and more than 1,000 were sentenced to prison, said Philippe.
At the weekend, there were renewed yellow-vest protests after a lull over the festive period.
Images of a policeman beating several protesters in the southern city of Toulon on Saturday were also widely condemned.
Journalists have also become targets for protesters, with many media outlets hiring bodyguards to protect their reporting teams.
Another major demonstration has been called for Saturday, this time in Bourges, central France, instead of the capital.
Last month, Macron promised tax cuts for pensioners, wage rises for the poorest workers and the scrapping of planned fuel tax increases to quell the unrest at a cost of 10 billion euros ($11.4 billion) to the treasury.