According to this study, when the center-right adopts policies/talking points from the radical-right to try and win their supporters back to the conservative center, it has the opposite effect.

https://www.cambridge.org/core/journals/political-science-research-and-methods/article/does-accommodation-work-mainstream-party-strategies-and-the-success-of-radical-right-parties/5C3476FCD26B188C7399ADD920D71770