The statement is an absolute claim “never”, is logically weak because historical realities are complex and context-dependent. Examples : Abolition of slavery in the UK: Conservative William Wilberforce led abolitionist efforts in Parliament. Environmental conservation in the US: Republican President Theodore Roosevelt created national parks and protected natural resources, laying groundwork for environmental policies admired today…
On top of that what is considered “progressive” or “conservative” changes over time. For instance, early movements to protect traditional indigenous knowledge and oppose forced Westernization were “conservative” from a cultural standpoint but are now viewed as morally just. History shows that no ideology has a monopoly on being right or wrong. Both conservative and progressive movements have contributed positively…